CN103703733A - Method for transmitting control signaling, method for receiving same, network device, and ue - Google Patents

Method for transmitting control signaling, method for receiving same, network device, and ue Download PDF

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Publication number
CN103703733A
CN103703733A CN201280004291.0A CN201280004291A CN103703733A CN 103703733 A CN103703733 A CN 103703733A CN 201280004291 A CN201280004291 A CN 201280004291A CN 103703733 A CN103703733 A CN 103703733A
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China
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frame
mbsfn sub
signal
signaling
data
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周明宇
曾清海
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058—Allocation criteria
    • H04L5/0073—Allocation arrangements that take into account other cell interferences
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

A method for transmitting a control signaling, a method for receiving same, a network device, and a UE are provided. The transmission method comprises: determining a cyclic prefix (CP) type corresponding to a data signal in a multicast-broadcast single-frequency network (MBSFN) subframe; generating a control signaling in the MBSFN subframe according to the CP type; and, on the MBSFN subframe, transmitting the control signaling via a frequency different from that of the data signal. In embodiments of the present invention, because a data domain signal and control domain signal in the MBSFN subframe are transmitted by using a frequency-division multiplexing scheme, flexible adjustment of a frequency domain resource occupied by a control domain is allowed on the basis of the magnitude of the control signaling transmitted, thus allowing for effective utilization of system bandwidth; also, when different network devices are transmitting the control signaling to UE of selves on a same MBSFN subframe, because the different network devices are allowed to employ the different frequencies to transmit the control signaling of selves, co-channel interferences among the control signaling transmitted by these network devices are prevented.

Description

Method for transmitting control signaling, method for receiving same, network device, and ue
Transmission method, method of reseptance, the network equipment and the UE of control signaling
Technical field
The present invention relates to communication technical field, the more particularly to transmission method of control signaling, method of reseptance, the network equipment and user equipment (User Equipment, UE).In background technology existing communication system, generally time-domain resource is divided according to regular length.With Long Term Evolution（Long Term Evolution, LTE) exemplified by system, the regular length is lms, and each lms time spans are referred to as a subframe, and each subframe is divided into some symbols of the same size in time domain.Subframe type can be divided into normal sub-frames and multicast broadcast multimedia service SFN（Multicast Broadcast Single Frequency Network, MBSFN) subframe.Wherein, for MBSFN sub-frame, the network equipment can send multi-media broadcasting service in broadcast or multicast mode in the MBSFN subframe（Multicast Broadcast and Multicast Service, MBMS) signal, or in the MBSFN subframe with the non-MBMS signals of mode of unicast transmission.
Each MBSFN sub-frame is divided into the control domain for transmitting control signaling and the data field for transmitting data-signal in time, and above-mentioned control domain and data field are to be time-multiplexed（Time Division Multiplexing, TDM) mode is multiplexed.Usual control domain occupies some symbols before a roc SFN subframe（For example, the first two symbol）, except controlling overseas remaining symbol corresponding data domain in the MBSFN sub-frame.Above-mentioned control domain and data field occupy whole system bandwidth on frequency domain,.
In the MBSFN subframe, fixed due to control domain and occupy some symbols before the MBSFN sub-frame, when the network equipment needs the control signaling transmitted less, control signaling, which is difficult to take all control domain symbols, to be transmitted, therefore system bandwidth can be caused to waste；And, when heterogeneous networks equipment transmits control signaling in same MBSFN sub-frame, for receiving the UE of control signaling of some network equipment transmission, by the frequency that heterogeneous networks equipment transmits control signaling is identical, thus can cause the UE receive the network equipment transmission control signaling can by other network equipments transmit control signaling co-channel interference.The content of the invention easily wastes system bandwidth the embodiments of the invention provide the transmission method of control signaling, method of reseptance, the network equipment and UE to solve transmission control signaling in the prior art, and the problem of generation co-channel interference. In order to solve the above-mentioned technical problem, the embodiment of the invention discloses following technical scheme：On the one hand there is provided a kind of transmission method of control signaling, methods described includes：
Determine the corresponding cyclic prefix CP type of data-signal in MBSFN sub-frame；
The control signaling in the MBSFN sub-frame is generated according to the CP types；
In the MBSFN sub-frame, the control signaling is transmitted by the frequency different from the data-signal.On the other hand there is provided a kind of method of reseptance of control signaling, methods described includes：
Receive the control signaling that the network equipment is transmitted in MBSFN sub-frame, the control signaling is that the network equipment is determined in the MBSFN sub-frame after the corresponding CP types of data-signal, the control signaling generated according to the CP types, the control signaling is transmitted in the frequency different from the data-signal；
Decoding is carried out to the control signaling and obtains control information.
On the one hand there is provided a kind of network equipment, the network equipment includes：
Determining unit, for determining the corresponding CP types of data-signal in MBSFN sub-frame；
Generation unit, for generating the control signaling in the MBSFN sub-frame according to CP types determined by the determining unit；
Transmission unit, in the MBSFN sub-frame, the control signaling that the generation unit is generated to be transmitted by the frequency different from the data-signal.
On the other hand include there is provided a kind of UE, the UE：
First receiving unit, for receiving the control signaling that the network equipment is transmitted in MBSFN sub-frame, the control signaling is that the network equipment is determined in the MBSFN sub-frame after the corresponding CP types of data-signal, the control signaling generated according to the CP types, the control signaling is transmitted in the frequency different from the data-signal；
Decoding unit, the control signaling for being received to the receiving unit carries out decoding and obtains control information.In the embodiment of the present invention, the network equipment determines the corresponding CP types of data-signal in MBSFN sub-frame, the control signaling in MBSFN sub-frame is generated according to CP types, in the MBSFN sub-frame, control signaling is transferred to UE in the frequency different from data-signal, so that UE can carry out decoding to control signaling obtains control information.In the embodiment of the present invention, because the data field signal and control domain signal in MBSFN sub-frame are transmitted using frequency division multiplexing mode, frequency domain resource shared by control domain can be adjusted flexibly, so as to effectively utilize system bandwidth according to the size of transmitted control signaling；And, when heterogeneous networks equipment transmits control signaling in same MBSFN sub-frame to respective UE, because heterogeneous networks equipment can transmit respective control signaling using different frequencies, therefore the co-channel interference between the control signaling of these network equipments transmission is avoided, it is ensured that UE can have correctly received control signaling. Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, the required accompanying drawing used in embodiment or description of the prior art will be briefly described below, apparently, drawings in the following description are only some embodiments of the present invention, for those of ordinary skill in the art, without having to pay creative labor, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is one embodiment flow chart of the transmission method of control signaling of the present invention；
Fig. 2 is another embodiment flow chart of the transmission method of control signaling of the present invention；
Fig. 3 A are the structural representation of the MBSFN sub-frame of transmission unicast signal；
Fig. 3 B are the structural representation of the MBSFN sub-frame of transmission MBMS signals；
Fig. 3 C are the schematic diagram that two network equipments transmit control signaling to same UE；
Fig. 4 is one embodiment flow chart of the method for reseptance of control signaling of the present invention；
Fig. 5 is one embodiment block diagram of inventive network equipment；
Fig. 6 is another embodiment block diagram of inventive network equipment；
Fig. 7 is UE of the present invention one embodiment block diagram；
Fig. 8 is UE of the present invention another embodiment block diagram；
Fig. 9 is UE of the present invention another embodiment block diagram.Embodiment following examples of the present invention provide transmission method, method of reseptance, the network equipment and the UE of control signaling, during realizing that the network equipment transmits control signaling in MBSFN sub-frame, in control signaling and the data-signal transmitted（It is the data-signal of mode of unicast transmission including MBMS signals and/or non-MBMS signals）Between made a distinction using frequency division multiplexing (Frequency Division Multiplexing, FDM) mode, so as to the size according to control signaling come from suitable resource.
In a communications system, cyclic prefix is generally passed through（Cycl ic Prefix, CP) technology resists the intersymbol interference that the multipath characteristics of wireless channel is caused.For the unicast signal transmitted by mode of unicast, because the unicast signal is generally transmitted by a network equipment, therefore the multipath characteristics of wireless channel is not obvious, shorter CP can be used in the MBSFN sub-frame for transmitting the unicast signal, normal CP are also referred to as in LTE system;For the MBMS signals transmitted by multicast or multicast, because the MBMS signals are generally transmitted by multiple network equipments, therefore the multipath characteristics of wireless channel is obvious, longer CP is used in the MBSFN sub-frame for accordingly transmitting the MBMS signals, extended CP are also referred to as in LTE system.
In existing communication system, for the control domain in each MBSFN sub-frame, because it is generally passed with mode of unicast It is defeated, therefore UE can receive control signaling using normal CP to assume all the time；For the data field in each MBSFN sub-frame, then it can make a distinction as follows：When the MBSFN sub-frame is transmits the subframe of signal with mode of unicast, then the network equipment indicates that UE receives unicast signal in the subframe, accordingly, and UE receives data-signal using normal CP to assume；When the MBSFN sub-frame is transmits the subframe of MBMS signals, then the network equipment indicates that UE receives MBMS signals in the subframe, accordingly, and UE receives data-signal using extended CP to assume.
In the embodiment of the present invention, because the control domain and data field in MBSFN sub-frame are multiplexed using FDM modes, control domain and data field occupy all symbols in a MBSFN sub-frame simultaneously, therefore control signaling and data-signal are transmitted simultaneously, and the CP that the two is used is identical.It follows that in the prior art, all control signalings are transmitted using mode of unicast, therefore mutually fixed applied to the CP types for receiving control signaling；Unlike the prior art, in embodiments of the present invention, it is identical with data-signal needs applied to the CP types for receiving control signaling, therefore just do not fixed applied to the CP types for receiving control signaling mutually.In the embodiment of the present invention, control signaling carries out frequency division multiplexing with data-signal, and the control channel for carrying the control signaling is properly termed as enhanced control channel（enhanced Control CHannel , eCCH).In order that those skilled in the art more fully understand the technical scheme in the embodiment of the present invention, and enable the above-mentioned purpose of the embodiment of the present invention, feature and advantage more obvious understandable, technical scheme in the embodiment of the present invention is described in further detail below in conjunction with the accompanying drawings.
It is one embodiment flow chart of the transmission method of control signaling of the present invention referring to Fig. 1：
Step 101:The network equipment determines the corresponding CP types of data-signal in MBSFN sub-frame.
Wherein, when the data-signal in MBSFN sub-frame is the unicast signal transmitted using mode of unicast, then the network equipment determines that the corresponding CP types of data-signal are normal CP in the MBSFN sub-frame;When the data-signal in MBSFN sub-frame is the MBMS signals transmitted using broadcast or multicast mode, then the network equipment determines that the corresponding CP types of data-signal are extended CP in the MBSFN sub-frame.
In the embodiment of the present invention, the network equipment can be base station（Base Station, BS), access point（Access Point, AP), far-end wireless device（Remote Radio Equipment, RRE), distal end radio port（Remote Radio Head, RRH), remote radio units（Remote Radio Unit, RRU), via node（Relay Node, RN) etc..Wherein, the relation between the network equipment and cell is not limited, and can be the one or more cells of network equipment correspondence or the one or more network equipments of cell correspondence.
Step 102:The control signaling in the MBSFN sub-frame is generated according to CP types.
In the embodiment of the present invention, because the control signaling in MBSFN sub-frame is multiplexed with data-signal using FDM modes, i.e., control signaling occupies the same-sign in a MBSFN sub-frame, therefore the CP classes of the two use with data-signal Type is consistent, that is to say, that data-signal correspondence CP types, the as corresponding CP types of control signaling determined by step 101.
Step 103:In the MBSFN sub-frame, control signaling is transmitted by the frequency different from data-signal.In embodiments of the present invention, different frequencies can be different subcarrier or different frequency bands or different carrier frequency etc., and this embodiment of the present invention is not limited.
As seen from the above-described embodiment, because the data field signal and control domain signal in MBSFN sub-frame are transmitted using frequency division multiplexing mode, frequency domain resource shared by control domain can be adjusted flexibly, so as to effectively utilize system bandwidth according to the size of transmitted control signaling；And, when heterogeneous networks equipment transmits control signaling in same MBSFN sub-frame to respective UE, because heterogeneous networks equipment can transmit respective control signaling using different frequencies, therefore the co-channel interference between the control signaling of these network equipments transmission is avoided, it is ensured that these UE can have correctly received control signaling.It is another embodiment flow chart of the transmission method of control signaling of the present invention referring to Fig. 2：
Step 201:The network equipment determines the corresponding CP types of data-signal in MBSFN sub-frame.
Wherein, when the data-signal in MBSFN sub-frame is the unicast signal transmitted using mode of unicast, then the network equipment determines that the corresponding CP types of data-signal are normal CP in the MBSFN sub-frame;When the data-signal in MBSFN sub-frame is the MBMS signals transmitted using broadcast or multicast mode, then the network equipment determines that the corresponding CP types of data-signal are extended CP in the MBSFN sub-frame.
In the embodiment of the present invention, the network equipment can be BS, AP, RRE, RRH, RRU, RN etc..Wherein, the relation between the network equipment and cell is not limited, and can be the one or more cells of network equipment correspondence or the one or more network equipments of cell correspondence.
Step 202:The first information for indicating the corresponding CP types of data-signal in the MBSFN sub-frame is sent to UE.In the present embodiment, the first information can be transmitted using any one following mode：
First way：The first information carried by air interface signaling is sent to UE.
The air interface signaling can be physical layer signaling, media intervention control（Media Access Control, MAC) layer signaling or wireless heterogeneous networks（Radio Resource Block, RRC) layer signaling.
Wherein, above-mentioned air interface signaling can particularly for indicate MBSFN sub-frame information broadcast signaling.The network equipment transmits the configuration information of MBSFN sub-frame by sending broadcast signaling to UE, wherein the packet of the different names of the correspondence of the configuration information with different attribute.With Long Term Evolution（Long Term Evolution, LTE) exemplified by system, the signaling that one of which is used to transmit broadcast signaling is system information block（System Information Block, SIB) signaling, entitled SIB2 broadcast signaling is used for the information for carrying MBSFN sub-frame in SIB signalings, Entitled SIB13 SIB is used to carry the information of the MBSFN sub-frame for transmission MBMS signal reservations in all MBSFN sub-frames.Accordingly, UE is received after SIB2, can be according to the information of the MBSFN sub-frame carried in SIB2, it is determined that the MBSFN sub-frame in all subframes received；UE is received after SIB13, can be determined to keep for the MBSFN sub-frame of MBMS signals in all MBSFN sub-frames according to the information for carrying the MBSFN sub-frame to transmit MBMS signal reservations in SIB13.
When the first information is carried in SIB13 signalings by the network equipment, a field can be increased in SIB13 to indicate the CP types of MBSFN sub-frame, the information for the MBSFN sub-frame that can also be multiplexed in SIB13.For example, in LTE system, a frame includes 10 subframes, above-mentioned 10 subframes are represented with subframe n, and n is 0 to 9.The network equipment can signal UE by sending SIB2, subframe 1, subframe 3, subframe 6 and subframe 8 in the frame are MBSFN sub-frame, further UE is signaled by sending SIB13, subframe 1 and subframe 3 are reserved available for transmission MBMS signals, then UE is received after above-mentioned SIB13 signalings, it can determine when receiving subframe 1 and subframe 3, control signaling is received using extended CP to assume.
Wherein, above-mentioned air interface signaling can be specially the signaling bag for transmitting broadcast or multicast channel scheduling information.When the first information is carried in the signaling bag of broadcast or multicast channel scheduling information by the network equipment, an information can be increased in the signaling bag dedicated for indicating the CP types of MBSFN sub-frame, the broadcast or multicast channel scheduling information in the signaling can also be multiplexed.For example, in LTE system, the signaling for transmitting broadcast or multicast channel scheduling information can be specially multicast channel schedule information（Multicast channel Scheduling Information, MSI) signaling, then the network equipment can send MSI signalings to UE, the MBSFN sub-frame that UE is used to transmit MBMS signals is signaled by MSI, UE is received after MSI signalings, when can determine to receive the MBSFN subframes notified in the MSI signalings, control signaling is received using extended CP to assume.
The second way：The first information carried by bit map bitmap modes is sent to UE.
The network equipment to UE by bitmap forms when transmitting the first information, the type information of each MBSFN sub-frame in one time cycle is identified by bit value, corresponding first bit value of MBSFN sub-frame of wherein transmission MBMS signals, then the corresponding MBSFN sub-frame of the first bit value uses extended CP, other MBSFN sub-frames in addition to the MBSFN sub-frame of the transmission MBMS signals correspond to the second bit value, then the corresponding MBSFN subframes of the second bit value use normal CP.
For example, a cycle includes 80 subframes altogether, then the network equipment sends 80 bits to UE, each bit is used for the CP types for indicating a subframe, wherein for each bit in 80 bits, it can set when bit value is 1, then corresponding subframe is the MBSFN sub-frame of transmission MBMS signals, it uses extended CP, when bit value is 0, then corresponding subframe is the MBSFN sub-frame of transmission unicast signal, or can also be common subframe, then these subframes use normal CP.When UE receives each subframe, according to the subframe in one cycle Numbering obtain corresponding with subframe bit value, when bit value is 1, then the control signaling in the subframe is received to assume using extended CP, when bit value is 0, then receives the control signaling in the subframe using normal CP as hypothesis.
The third mode：The first information of the set comprising the MBSFN sub-frame using first kind CP is sent to UE.The network equipment can send the first information for including sub-frame set to UE, received for example, the subframe number included in the set is 1 and 8, UE after the first information, it is determined that when it is 1 and 8 subframe to receive in each frame numbering, control signaling is received for hypothesis using extended CP.In the present embodiment, the subframe included in sub-frame set is the MBSFN sub-frame for being used to transmit MBMS signals.
Step 203:The control signaling in the MBSFN sub-frame is generated according to CP types.
In the embodiment of the present invention, because the control signaling in MBSFN sub-frame is multiplexed with data-signal using FDM modes, i.e. control signaling occupies the same-sign in a MBSFN sub-frame with data-signal, therefore the two CP type used is consistent, that is, data-signal correspondence CP types, the as corresponding CP types of control signaling determined by step 201.
Step 204:In the MBSFN sub-frame, control signaling is transmitted by the frequency different from data-signal.As seen from the above-described embodiment, because the data field signal and control domain signal in MBSFN sub-frame are transmitted using frequency division multiplexing mode, frequency domain resource shared by control domain can be adjusted flexibly, so as to effectively utilize system bandwidth according to the size of transmitted control signaling；And, when heterogeneous networks equipment transmits control signaling in same MBSFN sub-frame to respective UE, because heterogeneous networks equipment can transmit respective control signaling using different frequencies, therefore the co-channel interference between the control signaling of these network equipments transmission is avoided, it is ensured that these UE can have correctly received control signaling；And, because the network equipment will indicate that the first information of the corresponding CP types of data-signal is sent to UE in MBSFN sub-frame, therefore UE can be determined according to the CP types network equipment send control signaling used in CP types, consequently facilitating UE is properly received control signaling.Referring to Fig. 3 A and Fig. 3 B, for the structural representation of the MBSFN sub-frame of the application embodiment of the present invention：In the embodiment of the present invention, MBSFN sub-frame is divided into the MBSFN sub-frame for transmitting unicast signal and the MBSFN sub-frame of transmission MBMS signals.Wherein, show that the corresponding CP types of data-signal are normal CP in the structural representation of the MBSFN sub-frame of transmission unicast signal, the MBSFN sub-frame in Fig. 3 A;Show that the corresponding CP types of data-signal are extended CP in the structural representation of the MBSFN sub-frame of transmission MBMS signals, the MBSFN sub-frame in Fig. 3 B.
Such as Fig. 3 A and Fig. 3 B, in a MBSFN sub-frame, data-signal and control signaling occupy all time-domain resources, and are multiplexed by FDM modes on frequency domain.Where it is assumed that 2 Physical Resource Block in each subframe (Physical Resource Block, PRB) is used to transmit control signaling, and PRB and (n+1)th PRB of n-th as shown in Fig. 3 A and 3B, the control domain resource for carrying above-mentioned control signaling is referred to as eCCH.Because the network equipment can transmit control signaling and data-signal by the different frequency in a MBSFN sub-frame, therefore the frequency domain resource that control signaling is occupied can be adjusted flexibly, for example, when the network equipment needs the control signaling of transmission less, less PRB can be configured to transmit control signaling, and be used for other PRB in same MBSFN sub-frame to transmit data-signal, thus improve resource utilization.In addition, when two network equipments transmit control signaling in same MBSFN sub-frame to UE, the different PRB in same MBSFN sub-frame can be used to transmit respective control signaling, so as to avoid the co-channel interference between control signaling, as shown in Figure 3 C, it is schematic diagram of two network equipments to same UE transmission control signalings.
For the data-signal transmitted by mode of unicast, because the data-signal is generally transmitted by a network equipment, therefore the multipath characteristics of wireless channel is not obvious, and shorter CP, i.e., normal CP as shown in fig. 3 are used in the MBSFN sub-frame for accordingly transmitting the data-signal;For the MBMS signals transmitted by multicast or multicast, because the data-signal is generally transmitted by multiple network equipments, therefore the multipath characteristics of wireless channel is obvious, longer CP, i.e., extended CP as shown in Figure 3 B are used in the MBSFN sub-frame for accordingly transmitting the data-signal.As Fig. 3 A and Fig. 3 B are understood, because the symbol lengths using extended CP are longer than the symbol lengths using normal CP, therefore include 14 symbols using the subframe of normal CP symbol, and use the subframe of extended CP symbol to include 12 symbols.
It should be noted that, in MBSFN sub-frame as shown in Figure 3 A and Figure 3 B, data-signal occupies all time-domain resources in a MBSFN sub-frame, in actual applications, in order to compatible with prior art, some sign resources are used to transmit control signaling before in the time-domain resource that data-signal can also be occupied, to this embodiment of the present invention without limiting.The embodiment of the transmission method of foregoing control signaling describes the process that control signaling is transmitted to UE from network equipment side, and the embodiment with the transmission method of the control signaling is corresponding, and present invention also offers the embodiment that control signaling is received from UE side joints.
It is one embodiment flow chart of the method for reseptance of control signaling of the present invention referring to Fig. 4：
Step 401:Receive the control signaling that the network equipment is transmitted in MBSFN sub-frame, the control signaling is that the network equipment is determined in the MBSFN sub-frame after the corresponding CP types of data-signal, the control signaling generated according to the CP types, the control signaling is transmitted in the frequency different from data-signal.
Embodiment with the transmission method of foregoing control signaling is corresponding, when UE receives the instruction of network equipment transmission
In MBSFN sub-frame during the first information of the corresponding CP types of data-signal, believe according to data in the MBSFN sub-frame The control signaling that number corresponding CP type receptions network equipment is transmitted in MBSFN sub-frame.Wherein, receiving the first information of the corresponding CP types of data-signal in the instruction MBSFN sub-frame that the network equipment is sent can include：The first information carried by air interface signaling that the network equipment is sent is received, the air interface signaling includes physical layer signaling, MAC layers of signaling or rrc layer signaling；Or, receive the first information carried by bitmap modes that the network equipment is sent；Or, receive the first information for the set for including the MBSFN sub-frame using first kind CP that the network equipment is sent.Further, carrying the first information by air interface signaling can include：The air interface signaling is the broadcast signaling for being designated as transmitting the information of the MBSFN sub-frame of MBMS signal reservations, the numbering of MBSFN sub-frame comprising transmission MBMS signals in the broadcast signaling, regard the numbering of the MBSFN subframes as the first information；Or, the air interface signaling regard the numbering of the MBSFN subframes as the first information to transmit the numbering of the MBSFN sub-frame comprising transmission MBMS signals in the signaling bag of broadcast or multicast channel scheduling information, the signaling bag.Further, carrying the first information by bitmap modes can include：The type information of each MBSFN sub-frame in one time cycle is identified by bit value, corresponding first bit value of MBSFN sub-frame of wherein transmission MBMS signals, other MBSFN sub-frames the second bit value of correspondence in addition to the MBSFN sub-frame of the transmission MBMS signals.
When not receiving the first information of the corresponding CP types of data-signal in the instruction MBSFN sub-frame that the network equipment is sent, the control signaling that the network equipment is transmitted in MBSFN sub-frame is received in the way of alternative CP types are with blind Detecting.
Step 402:Decoding is carried out to control signaling and obtains control information.
Embodiment with the transmission method of foregoing control signaling is corresponding, when receiving the first information of the corresponding CP types of data-signal in the instruction MBSFN sub-frame that the network equipment is sent, the control signaling is decoded according to the corresponding CP types of data-signal in the MBSFN sub-frame.
When not receiving the first information of the corresponding CP types of data-signal in the instruction MBSFN sub-frame that the network equipment is sent, the control signaling is decoded in the way of alternative CP types are with blind Detecting；Further, when the result of the decoding is correct, UE can determine that the corresponding CP types of data-signal are correctly decoded used CP types for described in the MBSFN sub-frame.
As seen from the above-described embodiment, because the data field signal and control domain signal in MBSFN sub-frame are transmitted using frequency division multiplexing mode, frequency domain resource shared by control domain can be adjusted flexibly, so as to effectively utilize system bandwidth according to the size of transmitted control signaling；And, when heterogeneous networks equipment transmits control signaling in same MBSFN sub-frame to respective UE, because heterogeneous networks equipment can transmit respective control signaling using different frequencies, therefore the co-channel interference between the control signaling of these network equipments transmission is avoided, it is ensured that these UE can have correctly received control signaling. Corresponding with the transmission method of control signaling of the present invention and the embodiment of method of reseptance, present invention also offers the embodiment of the network equipment and UE.
It is one embodiment block diagram of inventive network equipment referring to Fig. 5：
The network equipment includes：Determining unit 510, generation unit 520 and transmission unit 530.
Wherein it is determined that unit 510, for determining the corresponding CP types of data-signal in MBSFN sub-frame；Generation unit 520, for generating the control signaling in the MBSFN sub-frame according to CP types determined by the determining unit 510；
Transmission unit 530, in the MBSFN sub-frame, the control signaling that the generation unit 520 is generated to be transmitted by the frequency different from the data-signal.
Wherein, the determining unit 510, can be specifically for when the data-signal in the MBSFN sub-frame is the unicast signal transmitted using mode of unicast, determining that the corresponding CP types of data-signal are common normal CP in the MBSFN sub-frame;When the data-signal in the MBSFN sub-frame is the MBMS signals transmitted using broadcast or multicast mode, determine that the corresponding CP types of data-signal are extension extended CP in the MBSFN sub-frame.It is another embodiment block diagram of inventive network equipment referring to Fig. 6：
The network equipment includes：Determining unit 610, transmitting element 620, generation unit 630 and transmission unit 640.Wherein it is determined that unit 610, for determining the corresponding CP types of data-signal in MBSFN sub-frame；Transmitting element 620, the first information of the corresponding CP types of data-signal in the MBSFN sub-frame of the determination of determining unit 610 is indicated for being sent to the UE.
Generation unit 630, for generating the control signaling in the MBSFN sub-frame according to CP types determined by the determining unit 610；
Transmission unit 640, in the MBSFN sub-frame, the control signaling that the generation unit 630 is generated to be transmitted by the frequency different from the data-signal.
Wherein, transmitting element 620 can include at least one following unit（Not shown in Fig. 6）：
First transmission sub-unit, for sending the first information carried by air interface signaling to UE, the air interface signaling includes physical layer signaling, MAC layer signaling or rrc layer signaling；
Second transmission sub-unit, for sending the first information carried by bit map bitmap modes to UE；3rd transmission sub-unit, the first information for sending the set comprising the MBSFN sub-frame using first kind CP to UE.
Specifically, carrying the first information by air interface signaling can include：The air interface signaling is finger It is shown as transmitting the numbering of the MBSFN sub-frame comprising transmission MBMS signals in the broadcast signaling of the information of the MBSFN sub-frame of MBMS signal reservations, the broadcast signaling, regard the numbering of the MBSFN sub-frame as the first information；Or, the air interface signaling regard the numbering of the MBSFN sub-frame as the first information to transmit the numbering of the MBSFN sub-frame comprising transmission MBMS signals in the signaling bag of broadcast or multicast channel scheduling information, the signaling bag.
Specifically, carrying the first information by bitmap modes can include：The type information of each MBSFN sub-frame in one time cycle is identified by bit value, corresponding first bit value of MBSFN sub-frame of wherein transmission MBMS signals, other MBSFN sub-frames the second bit value of correspondence in addition to the MBSFN sub-frame of the transmission MBMS signals.
Wherein, the determining unit 610, can be specifically for when the data-signal in the MBSFN sub-frame is the unicast signal transmitted using mode of unicast, determining that the corresponding CP types of data-signal are common normal CP in the MBSFN sub-frame;When the data-signal in the MBSFN sub-frame is the MBMS signals transmitted using broadcast or multicast mode, determine that the corresponding CP types of data-signal are extension extended CP in the MBSFN sub-frame.Referring to Fig. 7, one embodiment block diagram for being UE of the present invention：
The UE includes：First receiving unit 710 and decoding unit 720.
Wherein, first receiving unit 710, for receiving the control signaling that the network equipment is transmitted in MBSFN sub-frame, the control signaling is that the network equipment is determined in the MBSFN sub-frame after the corresponding CP types of data-signal, the control signaling generated according to the CP types, the control signaling is transmitted in the frequency different from the data-signal;Decoding unit 720, the control signaling for being received to the receiving unit 710 carries out decoding and obtains control information.
Wherein, it is described to determine that the corresponding CP types of data-signal include in the MBSFN sub-frame：
When the data-signal in the MBSFN sub-frame is the unicast signal transmitted using mode of unicast, determine that the corresponding CP types of data-signal are common normal CP in the MBSFN sub-frame;
When the data-signal in the MBSFN sub-frame is the MBMS signals transmitted using broadcast or multicast mode, determine that the corresponding CP types of data-signal are extension extended CP in the MBSFN sub-frame.Referring to Fig. 8, another embodiment block diagram for being UE of the present invention：
The UE includes：Second receiving unit 810, the first receiving unit 820 and decoding unit 830.
Wherein, the second receiving unit 810, the first information for receiving the corresponding CP types of data-signal in the instruction MBSFN sub-frame that the network equipment is sent；
First receiving unit 820, in the MBSFN sub-frame that is received according to second receiving unit 810 The corresponding CP types of data-signal, receive the control signaling that the network equipment is transmitted in the MBSFN sub-frame；The decoding unit 830, for the corresponding CP types of data-signal in the MBSFN sub-frame that is received according to second receiving unit, is decoded to the control signaling that first receiving unit is received.
Wherein, second receiving unit 810, can be specifically for receiving the first information carried by air interface signaling that the network equipment is sent, and the air interface signaling includes physical layer signaling, MAC layer signaling or RRC layers of signaling；Or, receive the first information carried by bitmap modes that the network equipment is sent；Or, receive the first information for the set for including the MBSFN sub-frame using first kind CP that the network equipment is sent.
Specifically, carrying the first information by air interface signaling can include：The air interface signaling is the broadcast signaling for being designated as transmitting the information of the MBSFN sub-frame of MBMS signal reservations, the numbering of MBSFN sub-frame comprising transmission MBMS signals in the broadcast signaling, regard the numbering of the MBSFN sub-frame as the first information；Or, the air interface signaling regard the numbering of the MBSFN sub-frame as the first information to transmit the numbering of the MBSFN sub-frame comprising transmission MBMS signals in the signaling bag of broadcast or multicast channel scheduling information, the signaling bag.
Specifically, carrying the first information by bitmap modes can include：The type information of each MBSFN sub-frame in one time cycle is identified by bit value, corresponding first bit value of MBSFN sub-frame of wherein transmission MBMS signals, other MBSFN sub-frames the second bit value of correspondence in addition to the MBSFN sub-frame of the transmission MBMS signals.Referring to Fig. 9, another embodiment block diagram for being UE of the present invention：
The UE includes：First receiving unit 910, decoding unit 920 and determining unit 930.
Wherein, the first receiving unit 910, for the control signaling transmitted according to the different CP type reception network equipments in MBSFN sub-frame；
The decoding unit 920, the control signaling for being received according to different CP types to first receiving unit 910 is decoded；
Determining unit 930, for when the result that the decoding unit 920 is decoded is correct, determining that the corresponding CP types of data-signal decode the CP types used by described in the MBSFN sub-frame.As seen from the above-described embodiment, the network equipment determines the corresponding CP types of data-signal in MBSFN sub-frame, the control signaling in MBSFN sub-frame is generated according to CP types, in the MBSFN sub-frame, control signaling is transferred to UE by the frequency different from data-signal, so that UE carries out decoding to control signaling obtains control information.In the embodiment of the present invention, because the data field signal and control domain signal in MBSFN sub-frame are transmitted using frequency division multiplexing mode, the frequency domain resource shared by control domain can be adjusted flexibly according to the size of transmitted control signaling, so as to effectively utilize system Regiment commander is wide；And, when heterogeneous networks equipment transmits control signaling in same MBSFN sub-frame to respective UE, because heterogeneous networks equipment can transmit respective control signaling using different frequencies, therefore the co-channel interference between the control signaling of these network equipments transmission is avoided, it is ensured that these UE can have correctly received control signaling.
Those skilled in the art can be understood that the technology in the embodiment of the present invention can add the mode of required general hardware platform to realize by software.Understood based on such, the part that technical scheme in the embodiment of the present invention substantially contributes to prior art in other words can be embodied in the form of software product, the computer software product can be stored in storage medium, such as R0M/RAM, magnetic disc, CD, including some instructions are to cause a computer equipment（Can be personal computer, server, or network equipment etc.）Perform the method described in some parts of each embodiment of the invention or embodiment.
Each embodiment in this specification is described by the way of progressive, and identical similar part is mutually referring to what each embodiment was stressed is the difference with other embodiment between each embodiment.For system embodiment, because it is substantially similar to embodiment of the method, so description is fairly simple, the relevent part can refer to the partial explaination of embodiments of method.
The embodiments of the present invention described above are not intended to limit the scope of the present invention.Any modifications, equivalent substitutions and improvements made within the spirit and principles in the present invention etc., should be included in the scope of the protection.

Claims (1)

  1. Claim
    1st, a kind of transmission method of control signaling, it is characterised in that methods described includes：
    Determine the corresponding cyclic prefix CP type of data-signal in multicast broadcast multimedia service SFN MBSFN sub-frame；
    The control signaling in the MBSFN sub-frame is generated according to the CP types；
    In the MBSFN sub-frame, the control signaling is transmitted by the frequency different from the data-signal.
    2nd, according to the method described in claim 1, it is characterised in that it is described determine MBSFN sub-frame in data-signal CP types after, in addition to：
    The first information for indicating the corresponding CP types of data-signal in the MBSFN sub-frame is sent to the UE.
    3rd, method according to claim 2, it is characterised in that described sent to UE indicates that the first information of the corresponding CP types of data-signal in the MBSFN subframes includes：
    The first information carried by air interface signaling is sent to UE, the air interface signaling includes physical layer signaling, MAC layer signaling or rrc layer signaling；Or,
    The first information carried by bit map bitmap modes is sent to UE；Or, the first information of the set comprising the MBSFN sub-frame using first kind CP is sent to UE.4th, method according to claim 3, it is characterised in that carrying the first information by air interface signaling includes：
    The air interface signaling is the broadcast signaling for being designated as transmitting the information of the MBSFN sub-frame of MBMS signal reservations, the numbering of MBSFN sub-frame comprising transmission MBMS signals in the broadcast signaling, regard the numbering of the MBSFN subframes as the first information；Or,
    The air interface signaling regard the numbering of the MBSFN sub-frame as the first information to transmit the numbering of the MBSFN sub-frame comprising transmission MBMS signals in the signaling bag of broadcast or multicast channel scheduling information, the signaling bag.
    5th, method according to claim 3, it is characterised in that carrying the first information by bitmap modes includes：
    The type information of each MBSFN sub-frame in one time cycle is identified by bit value, wherein MBSFN sub-frame the first bit value of correspondence of MBMS signals is transmitted, other MBSFN sub-frames the second bit value of correspondence in addition to the MBSFN sub-frame of the transmission MBMS signals.
    6th, according to any described method of claim 1 to 5, it is characterised in that the corresponding CP types of data-signal include in the determination MBSFN sub-frame：
    When the data-signal in the MBSFN sub-frame is the unicast signal transmitted using mode of unicast, determine that the corresponding CP types of data-signal are common normal CP in the MBSFN sub-frame;
    When the data-signal in the MBSFN sub-frame is the MBMS signals transmitted using broadcast or multicast mode, determine that the corresponding CP types of data-signal are extension extended CP in the MBSFN sub-frame.
    7th, a kind of method of reseptance of control signaling, it is characterised in that methods described includes：
    Receive the control signaling that the network equipment is transmitted in MBSFN sub-frame, the control signaling is that the network equipment is determined in the MBSFN sub-frame after the corresponding CP types of data-signal, the control signaling generated according to the CP types, the control signaling is transmitted in the frequency different from the data-signal；
    Decoding is carried out to the control signaling and obtains control information.
    8th, method according to claim 7, it is characterised in that before the control signaling that the reception network equipment is transmitted in MBSFN subframes, in addition to：Receive the first information of the corresponding CP types of data-signal in the instruction MBSFN subframes that the network equipment is sent；
    The control signaling transmitted in MBSFN sub-frame of the network equipment that receives is specially：According to the control signaling that the corresponding CP type receptions network equipment of data-signal is transmitted in the MBSFN sub-frame in the MBSFN subframes；
    It is described that the control signaling is decoded specially：The control signaling is decoded according to the corresponding CP types of data-signal in the MBSFN sub-frame.
    9th, method according to claim 8, it is characterised in that the first information of the corresponding CP types of data-signal includes in the instruction MBSFN sub-frame that the reception network equipment is sent：
    The first information carried by air interface signaling that the network equipment is sent is received, the air interface signaling includes physical layer signaling, MAC layer signaling or rrc layer signaling；Or,
    Receive the first information carried by bitmap modes that the network equipment is sent；Or, receive the first information for the set for including the MBSFN sub-frame using first kind CP that the network equipment is sent. 10th, method according to claim 9, it is characterised in that carrying the first information by air interface signaling includes：
    The air interface signaling is the broadcast signaling for being designated as transmitting the information of the MBSFN sub-frame of MBMS signal reservations, the numbering of MBSFN sub-frame comprising transmission MBMS signals in the broadcast signaling, regard the numbering of the MBSFN subframes as the first information；Or,
    The air interface signaling regard the numbering of the MBSFN sub-frame as the first information to transmit the numbering of the MBSFN sub-frame comprising transmission MBMS signals in the signaling bag of broadcast or multicast channel scheduling information, the signaling bag.11st, method according to claim 9, it is characterised in that carrying the first information by bitmap modes includes：
    The type information of each MBSFN sub-frame in one time cycle is identified by bit value, corresponding first bit value of MBSFN sub-frame of wherein transmission MBMS signals, other MBSFN sub-frames the second bit value of correspondence in addition to the MBSFN sub-frame of the transmission MBMS signals.
    12nd, the method according to claim 7 to 11 any one, it is characterised in that the corresponding CP types of data-signal include in the determination MBSFN sub-frame：
    When the data-signal in the MBSFN sub-frame is the unicast signal transmitted using mode of unicast, determine that the corresponding CP types of data-signal are common normal CP in the MBSFN sub-frame;
    When the data-signal in the MBSFN sub-frame is the MBMS signals transmitted using broadcast or multicast mode, determine that the corresponding CP types of data-signal are extension extended CP in the MBSFN sub-frame.
    13rd, method according to claim 7, it is characterised in that
    The control signaling transmitted in MBSFN sub-frame of the network equipment that receives is specially：The control signaling transmitted according to the different CP type reception network equipments in MBSFN sub-frame；
    It is described that the control signaling is decoded specially：The control signaling is decoded according to different CP types；
    Methods described also includes：
    When the result of the decoding is correct, determine that the corresponding CP types of data-signal decode the CP types used by described in the MBSFN sub-frame.
    14th, a kind of network equipment, it is characterised in that the network equipment includes： Determining unit, for determining the corresponding CP types of data-signal in MBSFN sub-frame；Generation unit, for generating the control signaling in the MBSFN sub-frame according to CP types determined by the determining unit；
    Transmission unit, in the MBSFN sub-frame, the control signaling that the generation unit is generated to be transmitted by the frequency different from the data-signal.
    15th, the network equipment according to claim 14, it is characterised in that the network equipment also includes:Transmitting element, the first information of the corresponding CP types of data-signal in the MBSFN sub-frame of the determining unit determination is indicated for being sent to the UE.
    16th, the network equipment according to claim 15, it is characterised in that the transmitting element includes at least one following unit：
    First transmission sub-unit, for sending the first information carried by air interface signaling to UE, the air interface signaling includes physical layer signaling, MAC layer signaling or rrc layer signaling；
    Second transmission sub-unit, for sending the first information carried by bit map bitmap modes to UE；
    3rd transmission sub-unit, the first information for sending the set comprising the MBSFN sub-frame using first kind CP to UE.17th, the network equipment according to claim 16, it is characterised in that carrying the first information by air interface signaling includes：
    The air interface signaling is the broadcast signaling for being designated as transmitting the information of the MBSFN sub-frame of MBMS signal reservations, the numbering of MBSFN sub-frame comprising transmission MBMS signals in the broadcast signaling, regard the numbering of the MBSFN subframes as the first information；Or,
    The air interface signaling regard the numbering of the MBSFN sub-frame as the first information to transmit the numbering of the MBSFN sub-frame comprising transmission MBMS signals in the signaling bag of broadcast or multicast channel scheduling information, the signaling bag.
    18th, the network equipment according to claim 16, it is characterised in that carrying the first information by bitmap modes includes：
    The type information of each MBSFN sub-frame in one time cycle is identified by bit value, wherein MBSFN sub-frame the first bit value of correspondence of transmission MBMS signals, except MBSFN of the transmission MBMS signals Other MBSFN sub-frames the second bit value of correspondence outside frame.
    19th, the network equipment according to claim 14 to 18 any one, it is characterized in that, the determining unit, specifically for when the data-signal in the MBSFN sub-frame is the unicast signal transmitted using mode of unicast, determining that the corresponding CP types of data-signal are common normal CP in the MBSFN sub-frame;When the data-signal in the MBSFN sub-frame is the MBMS signals transmitted using broadcast or multicast mode, determine that the corresponding CP types of data-signal are extension extended CP in the MBSFN sub-frame.
    20th, a kind of UE, it is characterised in that the UE includes：
    First receiving unit, for receiving the control signaling that the network equipment is transmitted in MBSFN sub-frame, the control signaling is that the network equipment is determined in the MBSFN sub-frame after the corresponding CP types of data-signal, the control signaling generated according to the CP types, the control signaling is transmitted in the frequency different from the data-signal；
    Decoding unit, the control signaling for being received to the receiving unit carries out decoding and obtains control information.
    21st, UE according to claim 20, it is characterised in that the UE also includes：
    Second receiving unit, the first information for receiving the corresponding CP types of data-signal in the instruction MBSFN sub-frame that the network equipment is sent；
    First receiving unit, specifically for the corresponding CP types of data-signal in the MBSFN sub-frame that is received according to second receiving unit, receives the control signaling that the network equipment is transmitted in the MBSFN sub-frame；
    The decoding unit, specifically for the corresponding CP types of data-signal in the MBSFN sub-frame that is received according to second receiving unit, is decoded to the control signaling that first receiving unit is received.22nd, UE according to claim 21, it is characterized in that, second receiving unit, specifically for receiving the first information carried by air interface signaling that the network equipment is sent, the air interface signaling includes physical layer signaling, MAC layer signaling or rrc layer signaling；Or, receive the first information carried by bitmap modes that the network equipment is sent；Or, receive the first information for the set for including the MBSFN sub-frame using first kind CP that the network equipment is sent.
    23rd, UE according to claim 22, it is characterised in that carrying the first information by air interface signaling includes： The air interface signaling is the broadcast signaling for being designated as transmitting the information of the MBSFN sub-frame of MBMS signal reservations, the numbering of MBSFN sub-frame comprising transmission MBMS signals in the broadcast signaling, regard the numbering of the MBSFN subframes as the first information；Or,
    The air interface signaling regard the numbering of the MBSFN sub-frame as the first information to transmit the numbering of the MBSFN sub-frame comprising transmission MBMS signals in the signaling bag of broadcast or multicast channel scheduling information, the signaling bag.
    24th, UE according to claim 22, it is characterised in that carrying the first information by bitmap modes includes：
    The type information of each MBSFN sub-frame in one time cycle is identified by bit value, corresponding first bit value of MBSFN sub-frame of wherein transmission MBMS signals, other MBSFN sub-frames the second bit value of correspondence in addition to the MBSFN sub-frame of the transmission MBMS signals.
    25th, the UE according to claim 20 to 24 any one, it is characterised in that the corresponding CP types of data-signal include in the determination MBSFN sub-frame：
    When the data-signal in the MBSFN sub-frame is the unicast signal transmitted using mode of unicast, determine that the corresponding CP types of data-signal are common normal CP in the MBSFN sub-frame;
    When the data-signal in the MBSFN sub-frame is the MBMS signals transmitted using broadcast or multicast mode, determine that the corresponding CP types of data-signal are extension extended CP in the MBSFN sub-frame.
    26th, UE according to claim 20, it is characterised in that
    First receiving unit, specifically for the control signaling transmitted according to the different CP type reception network equipments in MBSFN sub-frame；
    The decoding unit, is decoded specifically for the control signaling received according to different CP types to first receiving unit；
    The UE also includes：
    Determining unit, for when the result that the decoding unit is decoded is correct, determining that the corresponding CP types of data-signal decode the CP types used by described in the MBSFN sub-frame.
CN201280004291.0A 2012-07-19 2012-07-19 Method for transmitting control signaling, method for receiving same, network device, and ue Pending CN103703733A (en)

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